52e0b5d39e9a97736b03f2b0ac315bb874da3632574cdd252fd8b9138cc1b299

Resubmissions

17-12-2020 18:23

201217-a919dkygg2 10

03-12-2020 14:36

201203-xg2dt64s3j 10

Analysis

max time kernel
90s
max time network
92s
platform
windows7_x64
resource
win7v20201028
submitted
17-12-2020 18:23

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Report Analysis Logs

General

Target

document-1699807874.xls
Size

111KB
MD5

dea2166519409b96205775cc95abab6e
SHA1

a70da2919e3f81d3fd397435649097e296605536
SHA256

52e0b5d39e9a97736b03f2b0ac315bb874da3632574cdd252fd8b9138cc1b299
SHA512

28f317f53ace16c4c6ffc701fad325eebc0dc54c85477cfd9b27d1cbd809b1df128fa235b72c7db7927618adca29440a54c194f97cdb8f38bc98220200f24b1c

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://p-clone.net/ds/021220&C51

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	640	1968	regsvr32.exe	EXCEL.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1968 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1968 EXCEL.EXE
1968 EXCEL.EXE
1968 EXCEL.EXE

pid	process
1968	EXCEL.EXE

pid	process
1968	EXCEL.EXE
1968	EXCEL.EXE
1968	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1968 wrote to memory of 640	1968	EXCEL.EXE	regsvr32.exe
PID 1968 wrote to memory of 640	1968	EXCEL.EXE	regsvr32.exe
PID 1968 wrote to memory of 640	1968	EXCEL.EXE	regsvr32.exe
PID 1968 wrote to memory of 640	1968	EXCEL.EXE	regsvr32.exe
PID 1968 wrote to memory of 640	1968	EXCEL.EXE	regsvr32.exe
PID 1968 wrote to memory of 640	1968	EXCEL.EXE	regsvr32.exe
PID 1968 wrote to memory of 640	1968	EXCEL.EXE	regsvr32.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\document-1699807874.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 -s C:\gnbft\chtfj.dll
  2⤵
  - Process spawned unexpected child process
  PID:640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/640-3-0x0000000000000000-mapping.dmp

Download
memory/1540-2-0x000007FEF5E90000-0x000007FEF610A000-memory.dmp

Filesize
2.5MB

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